Improvement in circulating water-heaters for steam fire-engines



H. V. COLEMAN. y GIEGULATING WATER HEATER EOE STEAM EIEE ENGINES.

Patented Aug. 30, 1870.

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HENRY V.OOLEMAN, OF GHIOAGQ, ILLINOIS.

Letters Patent No. 106,782, (lated August 30, 1870 zMRRovnMnNT IN cIRcULTING WATER-ananas Fori STEAM PIRE-ENGINES.

The Schedule referred to in' these Letters Patent and making part of the same.

To all whom it may concern Be it known that I, HENRY V. COLEMAN, of

Chicago, in the county of Cook and State of Illinois, have invented a new and -usefnl Improvement in Circulating 'Water-Heaters; and I dofdeclarc that the following is a true and accurate description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon, and being a part of this specification, in which- Figure 1 is a vertical section on the line y y in g. Fggure'2 is a vertical sectionon the line zzf in g. `Figure 3 is a cross-section on the line a: x in iig. 2.

Figure 4 is a front elevation of the circulatingpipes, and their connections, with the three-way cocks open, Afor circulating heated water through another boiler.

Figure 5 is the same,` showing communication shutoff from the boiler, and the circulation carried on through the stand-pipe of the heater.

Like letters refer to like parts in each ligure.

The nature of* this invention relates to an improvement in the construction and method of' operating circulating water-heaters.

It consists- First, in the peculiar construction of the waterheater and circulating-pipes, and

Second, in providing the same' with detachable nes, by means of which the heat and gases of cornbustion from the stove, used in warming the apartment or building, may be conducted through the same, and thus .utilized for the purpose named during several ,months ofthe year, and saving the expense of a special fire in the heater during the season in which a heating-stove is required.

T he improvement in questioni is more particularly designed to be used in the housesof steam iire-en gines, for the purpose of keeping the wat-er in the boilers of said engines at or near the boiling-point, in order that steam may be quickly generated when the engine is called into service.

In the drawing- A represents a small upright boiler, from whose furnace A' the due B passes np out of the boiler, ns shown.

O is the opening in the side of the boiler, through which fuel is introduced to the furnace, when the heater is independently operated.

D. is a stand-pipe at one side of the l1eater,-commu nicating with the lower part thereof by the pipe E, and near the top with another pipe, F.

In these pipes are respectively placed' the threebottom.

-way cocks (Jl/Gf, cach provided with a dischargenozzle, to which flexiblev or other pipes, II H', are connected, and leading to the boiler of the engine.-

Between-the lowerthree-way cocks and the boiler is a checkvalve,1, opening toward the heater, and between this check-valvc and the boiler' is an airchamber, J, and below, a sediment-receiver, K.

' The levers a, which operate the plugs of the cocks, are connected by a rod, b, by means oi' which they are moved in unison.

Y When applied to the boiler ol' a steam fire-engine, the three-way cocks are connected therewith by the pipes H H', as described, the boiler of the heater being nearly or quite full 0f water, and standing so that its upper part is on a plane with the ordinary water-line of the engine-boiler The levers ot' the cocksare raised in the position shown in'iig. 4, when communication is opened between both boilers.

Now, if heat be applied to the water in the heater, it will be expanded and forced through the upper cock and pipe, into the upper part of the engineboiler, and coldl water from the. lower part thereof wilreplace it, returning through the lower pipe and coc Should there be any sediment heldin solution, it would naturally be deposited in the receiver K, whence it may readily be blown -out through a cock in its brewing down the levers, as shown in iig.. 5, communication between the heater and engine-boiler is shut ofi', and opened between the heater and standpipe, when th'e circulation proceeds in them in the manner described. lVh'eu the communication is thus closedbctweeu the heater and engine, the latter may bc removed without danger ofthe boiler being burned.

Lis a bi'urcatcd line, leading from the smoke-pipe M ot the heating-stove, which should be placed'in close proximity thereto.

The lower end oft-he liuc L is fitted over the mouth of the opening C -in the furnace, the fire-door beingr removed for that purpose;

The upper end of the tine-communicates with the external part of the fino',` B, which has a damper, c, iitted therein below the junction.

The vertical part of the iiueL has a damper, d, pivoted therein above the entrance ofthe flue M, and another one, e, below, the object of the employment of the fluo L being to utilize the waste heat of` the heating-stove in the following manner:

'.lhc dampers ce are opened, as shown in Iig. 1, and the damper d closed, when. the heated products of combustion fromthe stove will 'be compelled to pass' Byt through the heater, and thus save the expense of a, separate fire for the purpose of heating the water of the engine-boiler.

When a. direct draught is desired, the position of the dzimpers is reversed. V

I do notintend to confine myself merely to the employment of beatings,r water for the boilers of steam fire-engines, ns it is equally adapted to other like purposes.

VVhat I claim as my invention, and desire to secure by Letters Patent, is

1. In circulating waiterheaters. the construct-ion and arrangement of the three-way cocks G G', pipes H H', chuck-valve I, pipes E F, and stand-pipe D, with a. heating-boiler, A, substantially as and for the purpose set forth.

2. In combination with a, boiler, A, construct-ed substantially ns described, the bifuicated flue L, as and for the purpose set forth.

HENRYv V. COLEMAN.

Witnesses:

HARRY S. SPRAGUE, SAMUEL E. Joxns. 

